Forsterite Gemstone & Information | Gemopedia by JTV
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Forsterite is a colorless to greenish transparent member of the olivine mineral family, which also includes peridot. Forsterite has a heavy magnesium chemical composition and large crystals are not common, but highly sought after by collectors.

Colors

Colorless, Green, Yellow Green, Yellow, White

Forsterite classification

CommonName

Forsterite

Species

Forsterite

Variety

Colors

Colorless, Green, Yellow Green, Yellow, White

AlternateNames

GemstoneGroups

Olivine

KeySeparations

RI and birefringence

ClassificationComments

Forsterite is in the olivine group with peridot. If the stone is bright green it is probably peridot if the stone is colorless it is forsterite.